ISO/IEC 15429:1999 Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Wireless Terminal Location Registratio
2003ISO/IEC 15429:2003 Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network; Inter-exchange signalling protocol; Wireless terminal location registration supplementary service and wireless terminal information
1999ISO/IEC 15429:1999 Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Wireless Terminal Location Registratio